A test sub having a housing with a first end, a second end, a bore, and an exterior portion of the housing including a coiled tubing connector may be used to test a connection with coiled tubing. The test sub includes a valve positioned within the bore. The second end of the housing may be inserted into coiled tubing and fluid may be pumped into the housing to test the connection between the connector and the coiled tubing. The test sub may be a housing that may be attached to a coiled tubing connector already connected to coiled tubing. A rod within the housing may be moved to an inserted position permitting communication between a pressure port of the housing and an exterior port of the coiled tubing connector. Fluid may be pumped into the pressure port to test the connection between the coiled tubing connector and the coiled tubing.

A coiled tubing system includes a first section of coiled tubing, a second section of coiled tubing, a first insert assembly attached at an end of the first section of coiled tubing, a second insert assembly attached at an end of the second section of coiled tubing, and a connector disposed between the first and second sections of coiled tubing and removably coupled to the first and second insert assemblies. A portion of the connector is configured to pivot with respect to a longitudinal axis of the connector.

A connection system including a male connector portion and a female connector portion each including a housing, a valve disposed within the housing, a valve actuator operably connected to the valve, and a housing extension, the housing extension from the male connector portion being configured to interact with the valve actuator of the female connector portion to open the valve of the female connector portion during mating of the male and female connector portions

The present invention provides a device, namely a hydraulic-mechanical pipe connector that allows a simple, user friendly way to attach pipe and tools to one another whether this is a single connection to a bottom hole assembly or a splice connection joining two pipe ends together, thereby eliminating the need for tools such as wrenches and tongs and removing the need and difficulty of requiring pipe rotation to make up the connection. It also provides a simple, safe and efficient manner to affix a tool, sub assembly, bottom hole assembly or similar oil tools to the end of a pipe that has no thread attachment, without the need for the hand tools and wrenches. More importantly, the present invention provides a device that can splice multiple pipe or coil sizes together using the hydraulic actuation technique.

Disclosed is a coupling apparatus for coiled tubings of different diameters, an installing method for the coupling apparatus, and an installing method for tubings of different diameters. The coupling apparatus includes a bottom joint, a top joint, and a back cap, where a gapped slip sleeve is provided on a fitting ring groove on an outer side of an upper portion of the bottom joint, and the gapped slip sleeve is coupled with the bottom joint via a rotation preventing element capable of preventing radial rotation of the gapped slip sleeve. The coupling apparatus allows for easy installation and simple maintenance, and coupling coiled tubings of different diameters at the same wellhead with less difficulties, and provides enhanced resistance to tension and torque to avoid piercement and improve safety. The installing method includes retaining the top joint with a large diameter coiled tubing.

A coiled tubing system includes a first section of coiled tubing, a second section of coiled tubing, a first insert assembly attached at an end of the first section of coiled tubing, a second insert assembly attached at an end of the second section of coiled tubing, and a connector disposed between the first and second sections of coiled tubing and removably coupled to the first and second insert assemblies. A portion of the connector is configured to pivot with respect to a longitudinal axis of the connector.

The invention includes a connector for coupling to a composite pipe, and methods for forming the same. The connector has a seal carrier forming a fluid passage that is made of a first material and that includes a seal receiving portion configured to receive at least one seal and a first coupling surface on an outer seal carrier surface. The connector also has an interconnect with a passage configured to receive the seal carrier that is made of a second material and includes a second coupling surface on an inner interconnect surface configured for coupling with the first coupling surface to connect the seal carrier and the interconnect and a third coupling surface on an outer interconnect surface.

A test sub having a housing with a first end, a second end, a bore, and an exterior portion of the housing including a coiled tubing connector may be used to test a connection with coiled tubing. The test sub includes a valve positioned within the bore. The second end of the housing may be inserted into coiled tubing and fluid may be pumped into the housing to test the connection between the connector and the coiled tubing. The test sub may be a housing that may be attached to a coiled tubing connector already connected to coiled tubing. A rod within the housing may be moved to an inserted position permitting communication between a pressure port of the housing and an exterior port of the coiled tubing connector. Fluid may be pumped into the pressure port to test the connection between the coiled tubing connector and the coiled tubing.

Systems and methods presented herein facilitate operation of well-related tools. In certain embodiments, a variety of data (e.g., downhole data and/or surface data) may be collected to enable optimization of operations related to the well-related tools. In certain embodiments, the collected data may be provided as advisory data (e.g., presented to human operators of the well to inform control actions performed by the human operators) and/or used to facilitate automation of downhole processes and/or surface processes (e.g., which may be automatically performed by a computer implemented surface processing system (e.g., a well control system), without intervention from human operators). In certain embodiments, the systems and methods described herein may enhance downhole operations (e.g., milling operations) by improving the efficiency and utilization of data to enable performance optimization and improved resource controls of the downhole operations.

The present invention provides a device, namely a Hydraulic-Mechanical Pipe Connector that allows a simple, user friendly way to attach pipe and tools to one another whether this is a single connection to a bottom hole assembly or a Splice connection joining two pipe ends together, thereby eliminating the need for tools such as wrenches and tongs and removing the need and difficulty of requiring pipe rotation to make up the connection. It also provides a simple, safe and efficient manner to affix a tool, sub assembly, bottom hole assembly or similar oil tools to the end of a pipe that has no thread attachment, without the need for the hand tools and wrenches. More importantly, the present invention provides a device that can splice multiple pipe or coil sizes together using the hydraulic actuation technique.