公开(公告)号：KR780000745B1

公开(公告)日：1978-12-30

申请号：KR730001047

申请日：1973-06-28

Applicant: TEXACO DEVELOPMENT CORP

Inventor： CALDERON R ,  UMPHENOUR C F

公开(公告)号：ZA733933B

公开(公告)日：1974-10-30

申请号：ZA733933

申请日：1973-06-11

Applicant: TEXACO DEVELOPMENT CORP

Inventor： UMPHENOUR C ,  CALDERON R ,  ROGERS J

IPC: G01V1/38 ,  G01V1/02 ,  G01V1/137 ,  G01V1/387 ,  G10K9/04 ,  G01V ,  H03K

Abstract: At least one method for increasing the energy output of a seismic pneumatic energy generator for generating a seismic primary pulse with attenuated secondary pulses and three articles for practicing or carrying out the method are disclosed. One seismic pneumatic energy generator for practicing the method comprises two similar, tandem, compressed air chambers having radial exhaust ports and two piston valves, one valve forming the front end of the first chamber and the other valve forming both the rear end of the first chamber and the front end of the second chamber so that the second valve is responsive to the depressurizing of the first chamber for opening the second exhaust port for releasing the energy from the second chamber for forming a seismic pneumatic energy generator of increased energy output, increased total volume of the compressed air chambers, and increased total exhaust port area without requiring change in the shape of the exhaust ports, without changing the pulse signature, nor the bubble ratio.

公开(公告)号：ZA7303933B

公开(公告)日：1974-10-30

申请号：ZA7303933

申请日：1973-06-11

Applicant: TEXACO DEVELOPMENT CORP

Inventor： UMPHENOUR C ,  CALDERON R ,  ROGERS J

IPC: G01V1/38 ,  G01V1/02 ,  G01V1/137 ,  G01V1/387 ,  G10K9/04 ,  G01V ,  H03K

CPC classification number: G01V1/006 ,  G01V1/137 ,  G01V1/387