Apparatus for continuously perforating in oil wells
AssigneeBeijing Jinsuodao Investment and Consulting Co., Ltd.
InventorXueyi Cong
Life of this patent
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Abstract
The invention relates to a process for continuously perforating in a wellbore comprising the following steps of determining a location to be perforated in the wellbore proximate an oil formation; placing an apparatus comprising a plurality of charges to said location in the wellbore; and continuously conducting perforation at said location with said charges in the apparatus. The invention also provides an apparatus for specifically performing the process, which comprises a transmitting system, a positioning system and a controlling system. The process and the apparatus can be used in a poor condition of the formation.
Claims13
An apparatus used for continuously perforation a wellbore comprising:
- i) transmitting system comprising:
- a gun housing including a plurality of chambers arranged from top to bottom with an identical distance between each two adjacent chambers, each chamber comprising a charge;
- and
- a plurality of initiators positioned within said gun housing and connected to said charges, respectively;
- a plurality of first contacts positioned on the outer portion of said gun housing and connected to said initiators, respectively;
- ii) positioning system comprising:
- a base;
- a fluid pressure fastener mounted under said base for fixing the positioning system to the wellbore;
- and
- a sliding rail connected to said base, on which said transmitting system moves up and down,
- iii) controlling system comprising:
- a string connected to said gun housing;
- a second contact positioned on the upper portion of said sliding rail and connected to a power;
- a first cable connected to said initiator for controlling the detonation of said charge;
- and
- a second cable connected to said fluid pressure fastener,
- wherein when said transmitting system moves down along said sliding rail, said first contacts contact said second contact consecutively to initiate said charges.
Dependencies are inferred from the claim text.