How does a free point indicator tool work?

How does a free point indicator tool work?

The free-point indicator operates by detecting stretch in the tubular when tension is applied at surface. If stretch is not detected, the string must be stuck above the tool; if stretch is detected, the string is free above the free-point indicator tool.

What is a freepoint tool?

The traditional freepoint tool is an electromechanical tool designed to measure the amount of torque or stretch of a given length of tubing, drill pipe, or casing. The traditional freepoint tool uses either bow springs or magnets to anchor itself inside the pipe. Stretch and or torque is then applied to the pipe.

How do you free stuck coiled tubing?

The first action that you should do to free the stuck pipe caused by differential sticking.

1. Apply maximum flow rate as much as you can.
2. Apply maximum allowable torque in the drill string and work down torque to the stuck depth.
3. Slack off weight of string to maximum sit down weight.
4. Jar down with maximum trip load.

What is wireline in fracking?

While a slickline is a thin cable introduced into a well to deliver and retrieve tools downhole, a wireline is an electrical cable used to lower tools into and transmit data about the conditions of the wellbore. The logging tool, also called a sonde, is located at the bottom of the wireline.

What is free point?

1. n. [Well Workover and Intervention] The depth at which a tubing or coiled tubing string that is stuck in the wellbore is free to move. When the tubing string must be cut to enable recovery, the free point should be known to ensure retrieval of the cut tubing.

What is mechanical stuck pipe?

Mechanical Pipe sticking is when any part from the Drill String such as Drill Pipe, Heavy Weight Drill Pipe HWDP, Drill Collars, Drilling Bit or Bottom Hole Assembly BHA is stuck in a borehole due to mechanical reasons as cutting accumulation, junk, large cement cutting and changing Drill String geometry and cannot be …

What is differential stuck pipe?

A situation in which the drilling assembly (pipe, drill collars and bottomhole assembly) is stuck in filter cake that was previously deposited on a permeable zone. The pipe is held in the cake by a difference in pressures between the hydrostatic pressure of the mud and the pore pressure in the permeable zone.

What is slickline and wireline?

While a slickline is a thin cable introduced into a well to deliver and retrieve tools downhole, a wireline is an electrical cable used to lower tools into and transmit data about the conditions of the wellbore. Usually consisting of braided cables, wirelines are used to perform wireline logging, as well.

What is plug and perf?

Commonly, the “plug-and-perf” stimulation technique is employed in wells with cemented liners. Plug-and-perf includes pumping down a bridge plug on wireline with perforating guns to a given horizontal location near the toe of the well. The plug is set, and the zone is perforated.

What is mechanical sticking?

1. n. [Drilling] The limiting or prevention of motion of the drillstring by anything other than differential pressure sticking. Mechanical sticking can be caused by junk in the hole, wellbore geometry anomalies, cement, keyseats or a buildup of cuttings in the annulus.

What does differentially stuck mean?

Differential sticking is a problem that occurs when drilling a well with a greater well bore pressure than formation pressure, as is usually the case. In many cases the drilling fluid (mud) weight is reduced, thus relieving the pressure difference and releasing the stuck pipe string.

What is differential pressure pipe?

Differential-pressure pipe sticking occurs when a portion of the drillstring becomes embedded in a mudcake (an impermeable film of fine solids) that forms on the wall of a permeable formation during drilling.