Malvern M Hasha

US Patent:

41365526, Jan 30, 1979

Filed:

Jan 27, 1978

Appl. No.:

5/873003

Inventors:

Malvern M. Hasha - Houston TX

International Classification:

G01M 304

US Classification:

73 46

Abstract:

A body having a longitudinal opening through which a tubular member may extend for testing, such as two tubular members connected together by threaded connections or a coupling. Positioned along the longitudinal opening in the body are longitudinally spaced annular seal means. The body includes passage means for conducting fluid pressure against the outer circumferential surface of each of the annular seal means. Back-up means are mounted in association with each annular seal means for inward and outward radial movement with such seal means, each of the back-up means comprising anti-extrusion means to prevent significant extrusion of the seal means responsive to pressure imposed thereon. Means on each of the back-up means and on the seal means coact to urge the back-up means into tighter frictional engagement with the tubular members upon the application of a continuing radial force to the seal means by the pressurized actuating fluid after the seal means are moved into sealing engagement with the tubular member. The application of the pressurized actuating fluid against the outer circumferential surface of the annular seal means forces the seal means and the back-up means carried thereby into engagement with the tubular member whereby the spaced annular seal means and the body form a closed chamber which seals the exterior of the tubular member.

US Patent:

41321111, Jan 2, 1979

Filed:

Sep 16, 1974

Appl. No.:

5/506547

Inventors:

Malvern M. Hasha - Houston TX

International Classification:

G01M 328
E21B 33126

US Classification:

73 46

Abstract:

A body having a longitudinal opening therethrough is provided with longitudinally spaced, annular seal means. The body is provided with passage means for conducting fluid to move the seal means radially of the body opening to seal against tubular members in the body opening. The tubular members are connected together by suitable means such as a coupling, weld, or other arrangement prior to positioning the connection between the seal means and after the seal means has sealed off the connection therebetween, the body includes additional passage means for conducting fluid pressure to increase the fluid pressure externally of the connection to a pressure significantly greater than the internal pressure to externally test the connection by instrumentally or visually detecting any resultant inflow of the pressurized external fluid. Where the method of the present invention is employed for leak testing a thread-connected, multiple seal pipe joint having at least one internal and at least one external sealing arrangement, the connection between the tubular members may be only partially made up to a predetermined condition at which a primary or initial internal seal is established in the connection without engaging the external seal. After the joint has been externally tested in this condition, the test seals may be withdrawn from the tubular member and the connection completed to full make-up torque, and the joint again externally sealed and fluid pressure applied to externally test the connection.

US Patent:

41529260, May 8, 1979

Filed:

Nov 7, 1977

Appl. No.:

5/849309

Inventors:

Malvern M. Hasha - Houston TX

International Classification:

G01M 328

US Classification:

73 46

Abstract:

A method and apparatus of testing the connections between the pipe segments comprising a string of pipe being snubbed into a well under pressure immediately before such connections are forced into the pressurized well. There is provided gripping means which is vertically movable with respect to the well to grip the additional segments of pipe to be added to the string. Force means are secured to the gripping means to provide the force necessary to force the gripping means downwardly and thereby force the string of pipe with the additional segment connected therein further into the pressurized well. A testing apparatus is secured to the gripping means for externally testing the connection between the pipe string and the additional segment of pipe connected thereto. If the connection has no leak therein, the external testing means is released and the gripping means is extended upwardly to grip the string of pipe at its upper end thereof and the string of pipe is driven further into the pressurized well. If the connection has a leak therein, the external testing means is released and the additional segment of pipe is disconnected, the threads are inspected, and either a new connection made up with the same additional segment of pipe or between the string of pipe and a new additional segment of pipe.

US Patent:

40116174, Mar 15, 1977

Filed:

Jul 7, 1975

Appl. No.:

5/593525

Inventors:

Lester W. Toelke - Houston TX
Malvern M. Hasha - Houston TX
Thomas W. Scott - Lafayette LA
Jack W. Hayden - Houston TX

International Classification:

B08B 902

US Classification:

15 88

Abstract:

An open ended housing means is provided for receiving the pin or male end of a tubular member in one open housing end and the box or female end of a tubular member in the other open housing end. Brush means are rotatably mounted in the housing means and positioned relative to the opening housing ends for engaging the tubular member end and means are provided for rotating the brush means to clean the engaged ends of the tubular member. Additional means control the flow of solvent and gas to the housing means to further aid in cleaning the ends of the tubular member.

US Patent:

40106330, Mar 8, 1977

Filed:

Nov 17, 1975

Appl. No.:

5/632790

Inventors:

Malvern M. Hasha - Houston TX

International Classification:

G01M 304

US Classification:

73 46

Abstract:

An annular seal for engaging a tubular member. The seal includes an annular elastomer body having inner and outer surfaces and an interlocking reinforcing means associated with the inner surface of the elastomer body. The reinforcing means includes a plurality of segments and at least some of the segments have an arcuate flange secured thereto between the segment and the inner surface of the annular elastomer body, such arcuate flange extending into the annular space formed between the inner surface of the elastomer body and the outer surface of an adjacent segment.

US Patent:

49266802, May 22, 1990

Filed:

Feb 9, 1988

Appl. No.:

7/154981

Inventors:

Brian B. Hasha - Spring TX
Malvern M. Hasha - Houston TX
Bruce B. Hasha - Humble TX

International Classification:

G01M 328

US Classification:

73 46

Abstract:

A method and apparatus for hydrostatically testing connections between segments of pipe whereby pressurized hydrostatic test fluid is selectively applied to the connection such that the pressures are principally applied in the vicinity of the radial orifices leading into the sealing elements of the connection and not radially to the inner or outer annular surfaces of the connection in the vicinity of the sealing elements of the connection which would tend to substantially affect the bearing pressure of the sealing elements. In addition, a method and apparatus for selectively applying pressurized hydrostatic test fluid such that the pressures are applied to those areas where the bearing pressure of the sealing elements of the connection is sensitive to the applied pressures, thus manipulating the bearing pressure and controlling the sealing capacity of the connection during hydrostatic leak testing.

US Patent:

52091058, May 11, 1993

Filed:

Jun 20, 1990

Appl. No.:

7/540916

Inventors:

Malvern M. Hasha - Houston TX
Brian B. Hasha - Spring TX
Bruce B. Hasha - Seattle WA

International Classification:

G01M 328

US Classification:

73 491

Abstract:

A method and apparatus for hydrostatically testing connections between segments of pipe whereby pressurized hydrostatic test fluid is selectively applied to the connection such that the pressures are principally applied in the vicinity of the radial orifices leading into the sealing elements of the connection and not radially to the inner or outer annular surfaces of the connection in the vicinity of the sealing elements of the connection which would tend to substantially affect the bearing pressure of the sealing elements. In addition, a method and apparatus for selectively applying pressurized hydrostatic test fluid such that the pressures are applied to those areas where the bearing pressure of the sealing elements of the connection is sensitive to the applied pressures, thus manipulating the bearing pressure and controlling the sealing capacity of the connection during hydrostatic leak testing. Additionally, an improved method and apparatus for internally hydrostatically testing the integral connection between two sections of pipe threaded together wherein the connection's seal is provided by the interference between mating surfaces on the corresponding male and female ends of the sections of pipe wherein pressurized hydrostatic test fluid is principally applied in the vicinity of the internal radial orifice leading into the sealing elements of the connection and pressurized hydrostatic fluid is selectively applied to the inside of the connection in the vicinity of the interference seal.

US Patent:

44071710, Oct 4, 1983

Filed:

Jul 10, 1981

Appl. No.:

6/282088

Inventors:

Malvern M. Hasha - Montgomery TX
Brian B. Hasha - Houston TX

International Classification:

G01M 308

US Classification:

73 46

Abstract:

An apparatus and method for hydrostatically testing the seal integrity against leakage of the sealing face surface of the end of a pipe is disclosed. A test pad is engaged against a sealing face surface of a pipe and urged into tight contact with said sealing face surface. Fluid is applied under pressure to the juncture between said test pad and said sealing face surface to determine the seal integrity against leakage of the sealing face surface.