| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | JPS6250639B2 - | JP22304683 | 1983-11-26 | JPS6250639B2 | 1987-10-26 | HOORU HERU |
| 62 | Safety valve for oil well | JP22304683 | 1983-11-26 | JPS59150895A | 1984-08-29 | POORU HERU |
| 63 | JPS5442323B2 - | JP5276474 | 1974-05-11 | JPS5442323B2 | 1979-12-13 | |
| 64 | JPS5441003B2 - | JP12806072 | 1972-12-20 | JPS5441003B2 | 1979-12-06 | |
| 65 | Kelly cock apparatus | JP13384976 | 1976-11-09 | JPS5266801A | 1977-06-02 | ROI HENRII KAREN; DEIBUIDO YUUIN YANGU |
| 66 | JPS5211641B2 - | JP3517773 | 1973-03-29 | JPS5211641B2 | 1977-04-01 | |
| 67 | Method and device for testing well | JP4835076 | 1976-04-27 | JPS527801A | 1977-01-21 | JIYOOJI JIEI NITSUKUSU; BAACHIYUSU KIYUU BAARINTON; DEIBUITSUDO ERU FUAAREI; NOOMAN JIII HOOTOMAN |
| 68 | Pressureeoperated shuttoff valve to be used for prospecting apparatus and method of operating the valve | JP4834976 | 1976-04-27 | JPS522802A | 1977-01-10 | DEIBUITSUDO ERU FUAAREI; ROBAATO TEII EBUANZU |
| 69 | Method of and apparatus for installing remoteecontrolled safety valve for well | JP5799576 | 1976-05-21 | JPS51144304A | 1976-12-11 | JIEIMUSU DENJIRU MOTSUTO |
| 70 | Suichukaiheianzenbarubu | JP14582575 | 1975-12-05 | JPS51100906A | 1976-09-06 | TARUMITSUJI RAIN KURO |
| 71 | JPS4965302A - | JP6546473 | 1973-06-12 | JPS4965302A | 1974-06-25 | |
| 72 | JPS4947934A - | JP489273 | 1973-01-06 | JPS4947934A | 1974-05-09 | |
| 73 | JPS4944905A - | JP3517773 | 1973-03-29 | JPS4944905A | 1974-04-27 | |
| 74 | Method and apparatus for drilling using less pressure fluid of solid component content | JP51925896 | 1995-12-13 | JP3589425B2 | 2004-11-17 | シュー，フランク・ジェイ |
| 75 | Sub-sea pipeline system for valve | JP5544287 | 1987-03-12 | JPH06100290B2 | 1994-12-12 | クヌト・ホルベイ |
| 76 | Ball valve gear | JP5544287 | 1987-03-12 | JPS62283266A | 1987-12-09 | KUNUTO HORUBEI |
| 77 | Well drilling jet-proof device | JP13723886 | 1986-06-11 | JPS61294087A | 1986-12-24 | NIEUWSTAD RONALD LEONARDUS |
| 78 | Excavation tube test valve oil well test string and pressure testing | JP4734581 | 1981-04-01 | JPS57163886A | 1982-10-08 | MAIKERU EDEI MAKUMAAHAN; BAACHIYASU KUUINTON BAARINTON; JIERARUDO DEIIN JIYAKUSON |
| A drill pipe tester valve includes a housing having a first end adapted to be connected to a well test string, which housing has a flow passage therethrough. A spherical valve member having a valve bore therethrough is disposed in the flow passage of the housing. Lugs are attached to the housing for engaging the spherical valve member and rotating the spherical valve member between open and closed positions as the spherical valve member is moved axially relative to the housing. A resilient coil compression spring is located above the spherical valve member, between the housing and the spherical valve member for automatically closing the spherical valve member when the well test string is statically positioned within a well, and for automatically opening the spherical valve member and allowing well fluid within the well to fill the well test string above the spherical valve member as the well test string is lowered into the well. | ||||||
| 79 | JPS5638757B2 - | JP13823273 | 1973-12-13 | JPS5638757B2 | 1981-09-08 | |
| A full opening, annulus pressure responsive, formation testing method and apparatus wherein both valve closing and valve opening biasing forces are generated in response to annulus pressure and wherein a full opening, formation fluid flow passage is provided by the testing valve. A disabling mechanism may be employed which would be operable, in response to removal of the apparatus from a well bore, to vitiate an annulus pressure generated biasing force tending to urge the testing valve to a closed condition. | ||||||
| 80 | JPS5549239B2 - | JP13014172 | 1972-12-27 | JPS5549239B2 | 1980-12-10 | |
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